Costa, Fernando Pestana daMéndez, Maria IsabelPinto, João Teixeira2017-02-282017-02-282017-04Costa, Fernando Pestana da; Méndez, Maria Isabel; Pinto, João Teixeira - Bifurcation analysis of the twist-Fréedericksz transition in a nematic liquid-crystal cell with pre-twist boundary conditions: the asymmetric case. "European Journal of Applied Mathematics" [Em linha]. ISSN 0956-7925 (Print) ISSN 1469-4425 (Online). Vol. 28, nº 2 (2017), p. 243–2600956-7925http://hdl.handle.net/10400.2/6240In the paper, Bifurcation analysis of the twist-Fréedericksz transition in a nematic liquid-crystal cell with pre-twist boundary conditions (2009 Eur. J. Appl. Math. 20, 269–287) by da Costa et al. the twist-Fréedericksz transition in a nematic liquid-crystal one-dimensional cell of lenght L was studied, imposing an antisymmetric net twist Dirichlet condition at the cell boundaries. In the present paper, we extend that study to the more general case of net twist Dirichlet conditions without any kind of symmetry restrictions. We use phase-plane analysis tools and appropriately defined time maps to obtain the bifurcation diagrams of the model when L is the bifurcation parameter, and related these diagrams with the one in the antisymmetric situation. The stability of the bifurcating solutions is investigated by applying the method of Maginu (1978 J. Math. Anal. Appl. 63, 224–243).engPendulum equationLiquid crystalsNon-homogeneous Dirichlet boundary value problemsBifurcation theoryTime mapsPhase plane analysisTwist-Fréedericksz transitionLiquid crystalsjournal article10.1017/S0956792516000243